正确答案:

题目：耐受性定律也叫贝格曼定律。( )

解析：×

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举一反三的答案和解析：

[单选题]Passage FourMore than 6,000 children were expelled (开除) from US school last year for bringing guns and bombs to school, the US Department of Education said on May 8.

safety is a problem

解析：

46．答案为C。根据第一段，for bringing guns and bombs to school作出该项选择。

[单选题]由个别到一般的论证方法是

归纳论证